The "Undervolting" Guide

they have a program dedicated for the asus EEE pc for both overclocking and undervolting great tool to have

 

great guide

I have having a serious problem now.

cpu usage and volatage are spiking from 0.95 volts to 1.250 volts which never used to happen, Im going to uninstall rm clock completely and see what happens. does anyone know why after installing rmclock my fan stays on almost 100 percent of the time?? before it would just turn on when it got hot, but know its hot and stays on no matter what, very irritating s its a new laptop and its ruining the longevity by having the fan constantly running and the cpu voltages randomly spiking up and down..very dangerous

anyone know whats going on and what i should do to fix this or at the very last somehow revert to the original cpu settings??

 

my voltage spikes up as well while idling, however it stops once I stress cpu to 100%, its irritating, is it really dangerous or just inaccuracy of measurement of rmc? should I just use regular cpu voltage then?

 

OK guys decided to play with the undervolting on new notebook. Stress test 14 min. 62C and 60C with out UV. T9400 problem is RMClock only shows 4 multipliers. Top one is 9X should be 9.5X will add does go to 10X when single thread but RMClock does not show? Too lazy to read 206 pages of posts. Any tips? I clearly don't need major cooling but thought well the cooler the better?

 

I use CrystalCPUID to undervolt my T9400 on my M860TU.

Under its function tab I select Intel Enhanced Speedstep Control and use the 6x multiplier @ 1.063v (the lowest the processor can physically go according to testing and CPU-Z) while doing normal tasks and when I game or do encoding I set it to 9.5x @ 1.075.

Works like a charm except that the shortcuts you can make don't set the right voltages, so I just open up the program and set what I want and then exit the program and the setting will stay locked until I change it myself or reboot.

 

Anyone (with suitable programming skills) want to help update RMClock?

John

 

Something change now can't go below 1.113 voltage instead of .95
Not sure why this happened my lg p300 could have been after updating my bios.......

 

I would love to be able to get in on that, I'm still a junior programmer but I'm sure there's something I could do. Signing up now.

 

If I apply this in Vista, then switch into Ubuntu, will the underclock still apply?

 

No, you'll have to undervolt in Ubuntu as well. It's quite a bit trickier in Ubuntu, even more so if you are running 64bit, but here is a good link: (remove spaces)

http://ge.ubuntuforums.com/showthread.php?t=786402

The good thing is, that if you already have your optimal voltages in RMClock, you can put them straight into the terminal in Ubuntu. Have a read before you start, and ask the ubuntu forum guys for help if you get lost- they will send you in the right direction.

 

i have an interesting idea. is it smart to have only superlfm mode turned on for on battery setting? im also thinking if 6x 1.68ghz is better or superlfm 9x 1.26ghz is better. my cpu is on sig. they are both at .9000v setting.

 

lets say I am successfully able to undervolt my processor...does that mean the cpu run slowly? has anyone tried benchmarking their pc when defualt voltage and with a stable UV?

 

No, undervolting will not alter CPU performance in any way at all. Well, if you set your voltages too low it's possible that you will get bluescreened under high processor load, but other than that, there are NO disadvantages to undervolting. The only reason it's not done as stock is that each unit has is individual tolerances and it simply isn't possible to take the time to undervolt each processor that's made.

 

Many thanks to flipfire on this great guide. My Fujitsu S7111 T7200 is running cooler now at 1.05V.

 

Can CrystalCPUID or RMclock be used to change the multiplier higher than the stock multiplier on Extreme Edition processors that are on bios locked laptops?

My HP HDX Dragon has a locked down bios that won't allow me to change the multiplier, I'm wondering if I put an Extreme Edition Processor in my Dragon if I would be able to change to a higher multiplier (since its unlocked) within CrystalCPUID.

That would be incredible useful for all those commercial laptops sold with crippled bios's and wasted Extreme Edition processors.

Of course with my C2D T8100 in CrystalCPUID I can only change the multiplier to the maximum it allows, so I have no way of knowing if a multiplier unlocked CPU could go higher.

 

The OC multipliers will need to be unlocked via the BIOS.

RMclock wont recognize them till they are unlocked

Since HP's BIOS doesnt support overclocking of extreme processors. Try BIOSman.com

 

Hello,

I'm trying to make my notebook asus cooler.

Here's my configuration, should i change something and why?

Thanks for your help (i'm french so sorry for mistakes! ) !

 

Your thermal monitor seems to be disabled. Tick Thermal monitor 1 & 2 and Sync TM1

Other than that, your settings look fine.

Next step to better cooling is applying thermal paste and a notebook cooler.

 

Thanks a lot!

41°C is a good temperature for a notebook so?

 

Ey, really, thank you for this guide! I only got one question!
If i use hardware monitor, and let orthos run for 10 min i get this as max:
core#0 = 15 degrees and core#1 = 21 degrees. I don´t think that this is right, isn´t it? I have a intel core 2 duo p8600 2.40 ghz 1066 mhz...

 

Try using RealTemp/CoreTemp.

 

Yes its a great temperature.

Seems like HWmonitor havent updated their database for newer intels. As Andy stated, use Coretemp or Realtemp.

 

RealTemp uses an improper tjmax on some CPUs which leads to temperatures too low, FYI. Whichever program gives the most reasonable numbers is the one you should use.

 

Hjmax with coretemp was 105.. didn't changed during stress test.
And in stress test the core#0 and core1# both where 42 degrees... didn't changed... Is that right, or the same problem with the other program?

 

Ok thanks!

 

Had this results with realtemp, don't think that one works correct to?

 

K i ran the initial 10 min test thing and i had registered temps of abt 67C max. Lowered my voltage by .025, and i'm actually reading higher temps of abt 71C. Is this normal, or did i mess up somewhere? Thanks

 

rmclock cannot detect my dv5t w/p7350 chip... minimum voltage is 1.0000

 

Followed the guide and other P-6831FX users input and undervolted to:

6x - 0.9500V
7x - 0.9625V
8x - 0.9750V
9x - 0.9875V
10x - 1.0000V

no blue screen after 45 mins testing, can't go any lower than that. Temp read 56 degrees Celsius

 

is there no unervolting program in the hole world mad for a normal laptop with half multipliers working under vista 64?

 

How about Crystal CPUID?

 

I have to say, thanks for the tutorial, though i don't know if a lower temperature will help my GPU.

At around 15 minutes, it' hasn't reached higher than 71, 72 degrees C, which is phenomenal. Under the old voltages, it would run to 87 to 90 degrees C. It's an HP laptop, so a high temperature is kinda expected :b

 

Any knows if the RightMark Cpu program fully support penryn core? It does not recognize my cpu yet..

 

i just undervolted my hp dv5t from 1.1375 V @ 8x to 0.9250 V.
i did not get a bsod or any warnings! is that normal? did i do something wrong?

 

No problem, great results. Try cleaning out the fans and applying thermal paste too if you havent done so.

No it is not fully supported, though it will still work fine.

Yes it is normal to reach the lowest possible voltage. You are actually quite lucky, only a few chips are able to do this.

 

I just got 0.900v for all settings (x6,x7,x8,x9,x10). I ran orthos for 2.5 hrs, and i didnt get a single bsod or an error.

Can this happen? I have a Dell XPS M1530, with a T8100. My temps are down from 56C to 41C.

MORE SPEED

 

Yes it is normal to reach the lowest possible voltage for all multipliers. Your chip can tolerate very low voltages.

 

Awesome thanks for the great guide!

MORE SPEED

 

Absolutely fantastic guide!

I have an XPS M1730 with the X9000 Processor. I was Running it at 3.0 GHZ and I pretty much never knew about system improvements through voltages!

MASSIVE improvement overall, with temperatures and performance thanks to the "always set on maximal performance"

My base voltages were 1.475! with a Max temp of 93c! No lies! I was shocked myself

The lowest voltages I have is 1.1 in the drop down menu though! I managed to lower it to 1.2625v. The heat went from the crazy 93c max to a nice cool steady 71c

Now I idle at 28c as opposed to the 56c it was before!

However, I feel all of a sudden, I have done something wrong? My advanced cpu settings show my processors as a "desktop". In your guide it had said you only need to change it should the right processors were not displayed. Should I change mine to "mobile"? I noticed when i do my voltages went down by .100 on the program.

Oh and a quick question: I set the x9000 to run at 3.4GHZ. The laptops fans are steaming ahead at full. However the RMCLOCK only shows my cores to be working at 3GHZ? Also the fans keep going on like crazy even though my CYRO LX is on full as well! Im idling at 21c!!!..DO you know what I could do to make the fans turn off?? surely 21-23c is cool enough on idling!!

Any help is GREATLY apperciated

 

The x9000 can be abit tricky to UV.

Yes i suggest you set it to mobile mode unless it has issues.

Can you see the overclock multipliers in RMclock? (15 & 16x i believe)

The fans turned on fully might be because of your BIOS when you overclock. I suggest you use CPU-z to monitor the clockspeed.

 

Thanks for the quick reply.

I dont percieve it to have any issues under mobile mode, I just did all my configurations with desktop settings haha. On a side note when I checkmarked Auto adjust intermediate state VIDs with desktop or mobile mode, it never adjusted them! I use maximal settings with my 15x multiplier anyway so not a biggie.

And yes I saw the 15x multiplier with even it running at 3GHz, I dont see a 16x at 3.4GHZ though.

And im not a complete OC pro, If it weren't for my bios letting me easily control the OC'ing I probably woudn't do it haha. But you mean using CPU-Z monitor to view the clockspeed for testing purposes or to adjust OC settings?

And the RMclock shows my processor speed as 2998.6MHZ whether its been bios'ed to run at 3.0 or 3.4. Not sure if this helps you with any ideas

Again thanks for the quick message, much love to you and your thread!

 

No problemo

I just realised the x9000 doesnt overclock up to 3.4ghz. Where did you get 3.4ghz from?

200mhz FSB x multiplier = Clock speed

14x = 2.8ghz (stock speed)
15x = 3.0ghz (first OC multiplier)
16x = 3.2ghz (second OC multiplier)

I suggest you read the x9000 overclocking guide.

 

Mine has a factory overclockable bios to go to 3.4ghz

The rest is right though, I use the first OC multiplier, but I wanted to try the third (3.4) since i got my cyro lx cooling pad today so lol

 

Im definitely sure the x9000 only has 2 unlockable multipliers and a max rated speed of 3.2ghz. I was gonna put one in my 14"

The x9100 on the other hand can do up to 3.4ghz

 

I might have the X9100 then? I dont remember seeing that as the option when I purchased my M1730 however! (I just bought my M1730)

Anyhoo, by switching to mobile settings my vault is now 1.1500v from the 1.2650v on desktop which is weird how the settings differ yet both give me the same temperatures.

BTW do you think your ever going to do an undervolting guide to GPUs too - if possible?

 

Yeah funny, the x9100 is a 2nd generation Penryn chip which isnt even compatible with the M1730.

There is an <noparse>undervolting guide</noparse> for GPU's but it is complicated to do and requires you to reflash your vBIOS using NiBiTor (Nvidia BIOS Editor). I do not recommend doing it unless you know 100% what you are doing.

 

See this screenshot: Isn't this weird? Some Progs show my CPU running at the 3.4GHz which it is running at. Others like RMClock show it stuck at the 3GHz.

Take a look at the places i have circled.

edit: can't post the link because I have under 15 posts! I cant seem to PM you yet either..haha..

 

Yeah its a security measure against spammers.

Post the link just remove the www. part

 

Sorry for the late reply, hopefully this works!

i74.photobucket.com/albums/i242/Lytsu/Weird.jpg

 

Quick question, does any undervolting go away with a fresh HD install of Windows?

*Edit: after reading the 45 minutes thing for every single change, I've called it quits, lol.